OSRS Moon Armour Repair Calculator

Moon armour from the Perilous Moons activity comes in three sets — Blood Moon (melee), Blue Moon (magic), Eclipse Moon (ranged) — and each set has three degrading pieces: helm, chestplate, tassets. Like Barrows, you can buy them broken on the GE, repair them, and sell the repaired version for profit. Calculator above shows live profit on every broken piece across all nine SKUs.

How Moon repair profit works

The arbitrage: someone burns through 45 hours of combat in their Moon set, the armour breaks, they list the broken piece on the GE rather than repair it themselves. You buy it, repair it (NPC or POH armour stand), and list the repaired version. Profit per piece = repaired sell price − broken buy price − repair cost − 2% GE tax on the sell.

The repair cost is the largest single component of the formula here — much bigger than Barrows. NPC repair is 1.5M flat per piece (see callout above), so the broken-vs-repaired spread on the GE has to be at least that plus tax for any flip to work. Calculator handles the math; if a piece isn't on the table, no current margin exists.

Note: the weapons (Dual macuahuitl, Blue moon spear, Eclipse atlatl) don't degrade. Only the nine armour pieces qualify for repair flipping.

NPC repair vs POH armour stand

NPC repair (Bob in Lumbridge, Dunstan in Burthorpe, etc.) is convenient but flat — 1.5M per piece regardless of your Smithing level.

POH armour stand cuts that by 7,500 gp per Smithing level. That's a meaningful saving from very early on:

• At Smithing 30: 225,000 gp off per piece
• At Smithing 60: 450,000 gp off per piece
• At Smithing 99: 742,500 gp off per piece (drops the cost to 757,500)
• At Smithing 104 (boosted with orange stew): 780,000 gp off per piece (drops the cost to 720,000)

Unlike Barrows where the POH break-even is around Smithing 60, Moon's stand savings are large in absolute gp terms even at low Smithing. If you have any meaningful Smithing level and POH access (Construction 30+ for the stand), use it. The calculator lets you toggle Smithing level — the profit column updates with the right repair cost for your account.

Best pieces to flip right now

Calculator handles this. The profit-per-piece column at the top of the table is your watchlist. Patterns to know:

• Set demand follows combat style. Blood Moon is the main budget melee option, Blue Moon is mid-tier magic, Eclipse Moon is mid-tier ranged. Demand on each set tracks demand for that combat style on a given content week.
• Chestplates and tassets move more than helms. Same dynamic as Barrows — full sets get repaired, big armour pieces have more reliable arbitrage volume.
• The 45-hour break interval keeps supply thin. Players who break a piece every other week are common; daily breakers are rare. Don't expect Barrows-level volume here.

Realistic expectations

Margins per piece can be larger than Barrows because the repair cost base (1.5M) creates a wider broken-vs-repaired spread when one exists. Volume is the trade-off — Moon armour is newer than Barrows and the player base actively breaking pieces is smaller. Buy limits are 15 broken pieces per 4-hour window (vs Barrows' 5), so the cap on throughput is higher per item but you need active GE supply to fill the offers in the first place.

Calculator shows the actual flip-by-flip profit live.

FAQ

Where do I repair Moon armour?

Bob in Lumbridge, Dunstan in Burthorpe, or any other repair NPC will do it for 1.5M flat per piece. A POH armour stand (Construction 30+) is cheaper, with the discount scaling at 7,500 gp per Smithing level.

Why is the repair cost so much higher than Barrows?

Different cost base. Barrows is 60K–100K per piece flat NPC. Moon is 1.5M per piece flat NPC. The bigger base also means the absolute POH savings are bigger.

Can I boost Smithing for cheaper repairs?

Yes. Orange stew (+5 Smithing) takes you from 99 to 104 effective level for the discount calculation, dropping POH cost from 757.5K to 720K per piece. Worth doing for high-volume sessions.

Do Moon weapons degrade?

No. Only the three armour pieces per set (helm, chestplate, tassets) degrade and require repair. The weapons (Dual macuahuitl, Blue moon spear, Eclipse atlatl) are not in scope for this flip.

Why isn't a piece showing on the calculator?

Either there's no current margin (broken + repair > repaired, after tax) or the price data is stale. Both filter the piece out automatically.

Are the repair costs the same across all three sets?

Yes. The 1.5M NPC base and 7,500 gp per Smithing level discount apply uniformly to Blood Moon, Blue Moon, and Eclipse Moon pieces.